Can not run function, written wrong?

I can nor run the function and do not understand where I have written it wrong.

Answer 1

[Star Strider]

The order is reversed. The ‘x’ variable needs to be assigned before calculating ‘y’, since ‘y’ depends on ‘x’.

[Hanna Sundling]

yeah, I changed that so x is assigned before y but when I plot the graph does not look like it is supposed to. So I thought that i maybe have written the function wrong?

[Star Strider]

Note that ‘y’ will be complex, since you are taking the square root of a negative numbers in ‘x’ and in some parts of ‘sin(x)’.

Try this:

x = -1:0.5:1;
y = (x-sqrt(x))./sqrt(sin(x));

plot(x, real(y),    x, imag(y),    x,abs(y))
grid
legend('Re(y)', 'Im(y)', '| y |')